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SECTION 1
• GENERAL INFORMATION
TABLE OF CONTENTS
• GENERAL INFORMATION ................................................................................................ 1-1
Description ............................................................................................................................................. 1-1
Hardware Versions ................................................................................................................................ 1-1
Identifying DGC-2020 Version............................................................................................................ 1-1
Features ................................................................................................................................................. 1-1
Functions ................................................................................................................................................ 1-2
Generator Protection and Metering .................................................................................................... 1-2
Engine Protection and Metering ......................................................................................................... 1-2
Event Recording ................................................................................................................................. 1-2
Auto-Synchronizer .............................................................................................................................. 1-2
Contact Inputs and Output Contacts .................................................................................................. 1-2
Automatic Transfer Switch Control (Mains Failure)............................................................................ 1-2
Communication .................................................................................................................................. 1-2
USB Port ......................................................................................................................................... 1-3
CAN Bus Interface .......................................................................................................................... 1-3
External Dial-Out Modem Port ........................................................................................................ 1-3
RS-485 Port .................................................................................................................................... 1-3
AEM-2020 (Analog Expansion Module) ................................................................................................. 1-3
CEM-2020 (Contact Expansion Module) ............................................................................................... 1-3
LSM-2020 (Load Share Module) ............................................................................................................ 1-3
Style Number ......................................................................................................................................... 1-3
Specifications ......................................................................................................................................... 1-5
Operating Power ................................................................................................................................ 1-5
Power Consumption ....................................................................................................................... 1-5
Battery Ride Through ......................................................................................................................... 1-5
Current Sensing ................................................................................................................................. 1-5
1 Aac Current Sensing .................................................................................................................... 1-5
5 Aac Current Sensing .................................................................................................................... 1-5
Voltage Sensing ................................................................................................................................. 1-5
Contact Sensing ................................................................................................................................. 1-5
Terminals ........................................................................................................................................ 1-6
Engine System Inputs ........................................................................................................................ 1-6
Fuel Level Sensing ......................................................................................................................... 1-6
Coolant Temperature Sensing ........................................................................................................ 1-6
Oil Pressure Sensing ...................................................................................................................... 1-6
Engine Speed Sensing ................................................................................................................... 1-6
Output Contacts ................................................................................................................................. 1-7
PRESTART, START, and RUN Relays .......................................................................................... 1-7
Programmable Relays (12) ............................................................................................................. 1-7
Metering .............................................................................................................................................. 1-7
Generator and Bus Voltage (rms) ................................................................................................... 1-7
Generator Current (rms) ................................................................................................................. 1-7
Generator and Bus Frequency ....................................................................................................... 1-7
Apparent Power .............................................................................................................................. 1-7
Power Factor .................................................................................................................................. 1-8
Real Power ..................................................................................................................................... 1-8
Oil Pressure .................................................................................................................................... 1-8
Coolant Temperature ...................................................................................................................... 1-8
Battery Voltage ............................................................................................................................... 1-8
Engine RPM .................................................................................................................................... 1-9
Engine Run Time ............................................................................................................................ 1-9
Maintenance Timer ......................................................................................................................... 1-9
Fuel Level ....................................................................................................................................... 1-9
Generator Protection Functions ......................................................................................................... 1-9
Overvoltage (59) and Undervoltage (27) ........................................................................................ 1-9
9400200990 Rev X
DGC-2020 General Information
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